population, community, habitat and ecosystem

Question 1

what is a population?

Answer 1

the total number of individuals of one species in a particular habitat at a particular time

Question 2

what is a community?

Answer 2

formed of the populations of all the species present in an ecosystem at a particular time

Question 3

what is interdependance?

Answer 3

within a community, species rely on eachother for food, shelter, pollination etc
if one species is removed, it can affect the whole community

Question 4

what is a habitat?

Answer 4

where specific organisms live

Question 5

what is an ecosystem?

Answer 5

all the biotic and abiotic factors that interact within an area at one time

Question 6

what are biotic factors?

Answer 6

all the living components- plants and animals

Question 7

what are abiotic factors?

Answer 7

all the non-living components such as, light intensity, mineral ions and water availability

Question 8

what is an example of a small ecosystem?

Answer 8

a pond in a garden

Question 9

what is an example of a large ecosystem?

Answer 9

the whole of Antartica

Question 10

what is a physical environment?

Answer 10

all the non-living (abiotic) factors which affect growth and survival of living things
include temperature, carbon dioxide and oxygen concentrations, minerals in the soil